EgyptAir tweeted that a plane carrying 69 passengers and crew on a flight from Paris to Cairo went missing on Thursday, disappearing from radar over the Mediterranean Sea.

"An official source at EgyptAir said that Flight MS804, which departed Paris at 23:09 (CEST), heading to Cairo has disappeared from radar," the airline said on its official Twitter account. The aircraft was carrying 59 passengers and 10 crew.

Reuters reported in January that an EgyptAir mechanic, whose cousin joined Islamic State in Syria, is suspected of planting the bomb, according to sources familiar with the matter.

In March, an EgyptAir plane flying from Alexandria to Cairo was hijacked and forced to land in Cyprus by a man with what authorities said was a fake suicide belt. He was arrested after giving himself up.